Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 8:129-130 (1968)
© 1968 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Variance Components for Irrigated Seed Flax (Linum usitatissimum L.) Yields Trials1

Benjamine H. Beard and George F. Worker, Jr.2

The variance components for varieties with years and locations were determined for irrigated seed flax yield tests. Estimated standard errors of a varietal mean for comparative purposes were calculated for different combinations of years and replications. Testing 4 years with 6 replications, or 5 years with 3 replications gave estimated standard errors of 1.8, a magnitude considered practical for these tests.

Key Words: experimental design

1 Cooperative investigations, Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, and the Department of Agronomy, University of California. Acknowledgment for criticism and advice in the preparation of this manuscript is made to Dr. G. W. Bohn, and Mrs. Marlene Wagner, Crops Research Division, ARS, USDA, La Jolla and Brawley, Calif., respectively.

2 Research Agronomist, Crops Research Division, ARS, USDA, Brawley, Calif. 92227; and Associate Specialist in Agronomy, Imperial Valley Field Station, University of California, E1 Centro.

Received for publication July 5, 1967.




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Copyright © 1968 by the Crop Science Society of America.